Gravid Boa will not leave water?

I have a large gravid female at day 119 now that will not leave her water bowl. I have never seen this before and I'm curious if I should take the bowl out? Hot spot is around 92 and the cool side down to 84 or so. The bowl is on the cool end and she will lay in it for 3 or 4 days then go to the hot side for a day. Then straight back to the bowl This has been going on for the last 2 weeks....Any Thoughts?